✗ This firmware is not signed. This means you cannot restore to it in iTunes.
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Download (6.98 GB)✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.
iPhone11,8,iPhone12,1_15.2.1_19C63_Restore.ipsw file that you downloaded.iPhone11,8,iPhone12,1_15.2.1_19C63_Restore.ipsw file that you downloaded.cd ~/Downloadsidevicerestore -e iPhone11,8,iPhone12,1_15.2.1_19C63_Restore.ipsw and press enter.cd DownloadsGet-FileHash iPhone11,8,iPhone12,1_15.2.1_19C63_Restore.ipsw -Algorithm SHA1e05c16e9f45b62b5432efba30e12ab87c3475860. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone11,8,iPhone12,1_15.2.1_19C63_Restore.ipswe05c16e9f45b62b5432efba30e12ab87c3475860. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone11,8,iPhone12,1_15.2.1_19C63_Restore.ipswe05c16e9f45b62b5432efba30e12ab87c3475860. If it doesn't, you may need to redownload the file.| SHA256sum | 4f70021cea83a7c950f7134d576b8832114cb1f09bb03f1a0872720c8e90e81c |
|---|---|
| MD5sum | 2588d2a6448d35a4ee35b052fead1556 |
| SHA1sum | e05c16e9f45b62b5432efba30e12ab87c3475860 |
iOS 15.2.1 contains bug fixes for your iPhone including:
Messages may not load photos sent using an iCloud Link
Third-party CarPlay apps may not respond to input
For information on the security content of Apple software updates, please visit this website:
https://support.apple.com/kb/HT201222